318485 has 4 divisors (see below), whose sum is σ = 382188. Its totient is φ = 254784.

The previous prime is 318473. The next prime is 318503. The reversal of 318485 is 584813.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 584813 = 97 ⋅6029.

It can be written as a sum of positive squares in 2 ways, for example, as 54289 + 264196 = 233^2 + 514^2 .

It is a cyclic number.

It is not a de Polignac number, because 318485 - 2⁸ = 318229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 318485.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31844 + ... + 31853.

It is an arithmetic number, because the mean of its divisors is an integer number (95547).

2³¹⁸⁴⁸⁵ is an apocalyptic number.

It is an amenable number.

318485 is a deficient number, since it is larger than the sum of its proper divisors (63703).

318485 is an equidigital number, since it uses as much as digits as its factorization.

318485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63702.

The product of its digits is 3840, while the sum is 29.

The square root of 318485 is about 564.3447527886. The cubic root of 318485 is about 68.2909248396.

It can be divided in two parts, 3 and 18485, that multiplied together give a palindrome (55455).

The spelling of 318485 in words is "three hundred eighteen thousand, four hundred eighty-five".